{"id":18830,"date":"2024-01-11T17:19:47","date_gmt":"2024-01-11T17:19:47","guid":{"rendered":"https:\/\/blogs.futura-sciences.com\/feldmann\/?p=18830"},"modified":"2024-01-26T17:56:39","modified_gmt":"2024-01-26T17:56:39","slug":"mars-express-vingt-ans-en-orbite-martienne","status":"publish","type":"post","link":"https:\/\/blogs.futura-sciences.com\/feldmann\/2024\/01\/11\/mars-express-vingt-ans-en-orbite-martienne\/","title":{"rendered":"Mars Express : vingt ans en orbite martienne !"},"content":{"rendered":"<p><strong>L\u2019orbiteur europ\u00e9en Mars Express nous offre une superbe image pour f\u00eater deux d\u00e9cennies en orbite autour de la Plan\u00e8te rouge.<\/strong><\/p>\n<h5>Long\u00e9vit\u00e9 record :<\/h5>\n<p>Les sondes qui ont survol\u00e9 la <a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/2021\/02\/19\/de-lowell-a-perseverance-la-planete-mars-nous-a-toujours-fait-rever\/\" target=\"_blank\" rel=\"noopener\">Plan\u00e8te rouge<\/a> depuis Mariner 4 en 1965 sont nombreuses. Parmi elles, l\u2019orbiteur europ\u00e9en Mars Express tient une place tout \u00e0 fait honorable. Lanc\u00e9 du cosmodrome de<a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/2016\/11\/16\/en-video-super-lune-leve-sur-baikonour\/\" target=\"_blank\" rel=\"noopener\"> Ba\u00efkonour<\/a> le 2 juin 2003, Mars Express se satellise 6 mois plus tard autour de la Plan\u00e8te rouge. Vingt ann\u00e9es se sont \u00e9coul\u00e9es depuis et la sonde poursuit toujours son travail. Elle cartographie les <a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/2017\/01\/30\/en-video-orbiteur-mars-express-survole-mawrth-vallis\/\" target=\"_blank\" rel=\"noopener\">reliefs<\/a>, \u00e9tudie l\u2019\u00e9volution des <a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/2020\/10\/14\/planete-mars-spectaculaire-image-de-la-calotte-polaire-sud\/\" target=\"_blank\" rel=\"noopener\">calottes polaires<\/a>, analyse l\u2019atmosph\u00e8re et son interaction avec le <a href=\"http:\/\/www.futura-sciences.com\/sciences\/videos\/vent-solaire-terre-protegee-son-champ-magnetique-401\/\" target=\"_blank\" rel=\"noopener\">vent solaire<\/a>. Pour f\u00eater comme il se doit cet anniversaire, les ing\u00e9nieurs de l&#8217;<a href=\"https:\/\/www.esa.int\/Science_Exploration\/Space_Science\/Mars_Express\/20_years_of_Mars_Express_Mars_as_never_seen_before?\" target=\"_blank\" rel=\"noopener\">ESA<\/a> ont pr\u00e9sent\u00e9 cette tr\u00e8s belle image :<\/p>\n<figure id=\"attachment_18832\" aria-describedby=\"caption-attachment-18832\" style=\"width: 450px\" class=\"wp-caption alignnone\"><a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2023\/12\/mars_express.jpg\" rel=\"lightbox[18830]\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-18832 size-medium\" src=\"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2023\/12\/mars_express-450x270.jpg\" alt=\"\" width=\"450\" height=\"270\" srcset=\"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2023\/12\/mars_express-450x270.jpg 450w, https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2023\/12\/mars_express-1024x614.jpg 1024w, https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2023\/12\/mars_express-768x461.jpg 768w, https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2023\/12\/mars_express.jpg 1500w\" sizes=\"auto, (max-width: 450px) 100vw, 450px\" \/><\/a><figcaption id=\"caption-attachment-18832\" class=\"wp-caption-text\">Image composite de la plan\u00e8te Mars r\u00e9alis\u00e9e \u00e0 partir de 90 clich\u00e9s pris par la sonde europ\u00e9enne Mars Express en orbite depuis 20 ans. \u00a9 ESA<\/figcaption><\/figure>\n<p>Ce clich\u00e9 a \u00e9t\u00e9 obtenu en assemblant 90 prises de vues r\u00e9alis\u00e9es depuis des altitudes allant de 4.000 \u00e0 10.000 km. La grande cicatrice bleue correspond \u00e0 <a href=\"https:\/\/www.futura-sciences.com\/sciences\/actualites\/astronomie-mars-evenements-tectoniques-ont-faconne-valles-marineris-plus-grand-canyon-systeme-solaire-40679\/\" target=\"_blank\" rel=\"noopener\"><em>Valles Marineris<\/em><\/a>. Il s&#8217;agit d&#8217;un gigantesque canyon (le plus grand du Syst\u00e8me solaire) qui s&#8217;\u00e9tire sur 4.000 km. Rappelons que de son c\u00f4t\u00e9 la sonde am\u00e9ricaine MRO (<a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/2016\/06\/28\/mro-deniche-sur-mars-deux-tres-jeunes-crateres-noirs\/\" target=\"_blank\" rel=\"noopener\"><em>Mars Reconnaissance Orbiter<\/em><\/a>) est en orbite martienne depuis le 10 mars 2006. Les sondes martiennes nous permettent d&#8217;\u00e9tudier la Plan\u00e8te rouge m\u00eame lorsqu&#8217;elle est tr\u00e8s \u00e9loign\u00e9e de la Terre comme c&#8217;est le cas actuellement. Pour observer Mars avec nos t\u00e9lescopes terrestres, il nous faudra attendre la prochaine opposition en janvier 2025.<\/p>\n<h5>Vous pourriez aimer :<\/h5>\n<ul>\n<li><a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/2022\/12\/13\/heureux-qui-comme-curiosity-fait-un-beau-voyage-sur-mars\/\" target=\"_blank\" rel=\"noopener\">Heureux qui, comme Curiosity, fait un beau voyage sur Mars<\/a><\/li>\n<li><a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/2021\/01\/04\/planete-mars-decouvrez-les-etonnants-crateres-inverses\/\" target=\"_blank\" rel=\"noopener\">D\u2019o\u00f9 viennent les curieux crat\u00e8res invers\u00e9s sur Mars ?<\/a><\/li>\n<li><a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/2020\/11\/08\/voici-la-plus-belle-image-de-la-planete-mars-jamais-realisee\/\" target=\"_blank\" rel=\"noopener\">Voici la plus belle image de la plan\u00e8te Mars jamais r\u00e9alis\u00e9e<\/a><\/li>\n<\/ul>\n<p>Suivez l\u2019actualit\u00e9 astronomique et d\u00e9couvrez mes images du ciel en vous abonnant \u00e0 Cielmania sur\u00a0<a href=\"https:\/\/www.facebook.com\/cielmania\/\" target=\"_blank\" rel=\"noopener noreferrer\">Facebook<\/a>.<\/p>\n<!-- AddThis Advanced Settings generic via filter on the_content --><!-- AddThis Share Buttons generic via filter on the_content -->","protected":false},"excerpt":{"rendered":"<p>L\u2019orbiteur europ\u00e9en Mars Express nous offre une superbe image pour f\u00eater deux d\u00e9cennies en orbite autour de la Plan\u00e8te rouge. Long\u00e9vit\u00e9 record : Les sondes qui ont survol\u00e9 la Plan\u00e8te rouge depuis Mariner 4 en 1965 sont nombreuses. Parmi elles, l\u2019orbiteur europ\u00e9en Mars Express tient une place tout \u00e0 fait honorable. Lanc\u00e9 du cosmodrome de &hellip; <a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/2024\/01\/11\/mars-express-vingt-ans-en-orbite-martienne\/\" class=\"more-link\">Continuer la lecture de <span class=\"screen-reader-text\">Mars Express : vingt ans en orbite martienne !<\/span>  <span class=\"meta-nav\">&rarr;<\/span><\/a><!-- AddThis Advanced Settings generic via filter on get_the_excerpt --><!-- AddThis Share Buttons generic via filter on get_the_excerpt --><\/p>\n","protected":false},"author":8,"featured_media":18831,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":"","_links_to":"","_links_to_target":""},"categories":[509],"tags":[702,771,115],"class_list":["post-18830","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-actualites","tag-mars-express","tag-mro","tag-planete-rouge"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v24.1 - 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